English, Article edition: Scheduling interfering job sets on parallel machines Balasubramanian, Hari; Fowler, John; Keha, Ahmet; ...

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Physical Description
  • article
Language
  • English

Edition details

Title
  • Scheduling interfering job sets on parallel machines
Author
  • Balasubramanian, Hari
  • Fowler, John
  • Keha, Ahmet
  • Pfund, Michele
Physical Description
  • article
Notes
  • We consider bicriteria scheduling on identical parallel machines in a nontraditional context: jobs belong to two disjoint sets, and each set has a different criterion to be minimized. The jobs are all available at time zero and have to be scheduled (non-preemptively) on m parallel machines. The goal is to generate the set of all non-dominated solutions, so the decision maker can evaluate the tradeoffs and choose the schedule to be implemented. We consider the case where, for one of the two sets, the criterion to be minimized is makespan while for the other the total completion time needs to be minimized. Given that the problem is NP-hard, we propose an iterative SPT-LPT-SPT heuristic and a bicriteria genetic algorithm for the problem. Both approaches are designed to exploit the problem structure and generate a set of non-dominated solutions. In the genetic algorithm we use a special encoding scheme and also a unique strategy - based on the properties of a non-dominated solution - to ensure that all parts of the non-dominated front are explored. The heuristic and the genetic algorithm are compared with a time-indexed integer programming formulation for small and large instances. Results indicate that the both the heuristic and the genetic algorithm provide high solution quality and are computationally efficient. The heuristics proposed also have the potential to be generalized for the problem of interfering job sets involving other bicriteria pairs.
  • Interfering job sets Parallel machines Bicriteria scheduling
  • RePEc:eee:ejores:v:199:y:2009:i:1:p:55-67
Language
  • English
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